"kundalini", are you sure? It's clear to me that what these charismatic types are really doing is unwittingly enacting rituals that incorporate sound as a vibratory aid to project the original thought so that it can be "copied" within the mental body of each person, giving the original thought power, definition, and form. In other words they are creating egregore or servitor type thought-forms LOL. If they were to suddenly experience so-called kundalini, then any fears that were utilized in the creation of these thought-forms would probably send them running for the hills in sheer terror.
This is not totally accurate, in my opinion. It's very outdated and incomplete, but it will at least give you an idea of wtf I'm babbling about.
http://www.gutenberg.org/files/16269/16269-h/16269-h.htm#THOUGHT-FORMS